I've installed a set of Porter, Gatekeeper pickups in my S2 Custom 22. Low wind, low output (6.8k), alnico II for the neck and low output (7.8k), alnico V for the bridge. They sound very good. I still have another CU22 for comparison. They sound a little more full range, than my 85/15s pickups. They are kind of like a Starla or Filtertron in the neck, with a PAF in the bridge. I wired the Gatekeepers only for the humbucker mode. As a Strat player, I'm not impressed with the split pickup sound. The PRS pickups still sound better in the middle position. But, I'm hoping to get balance between the neck and bridge. Overall I'm very pleased with Porter Pickups. My pair of S2 Custom 22's.